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Australian Energy Producers Journal Australian Energy Producers Journal Society
Journal of Australian Energy Producers
RESEARCH ARTICLE

LNG production revenue enhancement

Michael J. Vines
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Level 4, 178 St Georges Terrace Perth Western Australia 6000. Email: Michael.J.Vines@ExxonMobil.com

The APPEA Journal 59(1) 302-309 https://doi.org/10.1071/AJ18089
Submitted: 5 December 2018  Accepted: 15 January 2019   Published: 17 June 2019

Abstract

Liquefied natural gas (LNG) production involves complex processes that differ from conventional oil and gas production. That complexity, however, can be harnessed to drive improved business performance. Parameters for optimisation include plant reliability, capacity and yield. In combination, these parameters may deliver a non-linear upside to production operations at minimal cost. This paper shall therefore review a method for assessing the existing and potential performance of a hypothetical LNG facility with a focus on maximisation of gross revenue. Drawing on various case studies, several key process steps shall be reviewed in detail using both fundamental engineering and managerial economics. Optimisation of a single LNG train shall be reviewed to show the cumulative impact of executing a combination of individually small process improvements. The improvements reviewed span the spectrum from setpoint and alarm changes to in-depth technical studies and physical modifications. The process for planning, studying and testing enhanced performance is also discussed. The outcomes from a combination of these initiatives are summarised, including a forecast of the potential for further continuous improvement as well as real world examples.

Keywords: capacity enhancement, endflash, main cryogenic heat exchanger (MCHE), process optimisation, retrograde condensation.

Michael Vines has more than 16 years’ experience with ExxonMobil. He has diverse experience in upstream production, research and development, including operations, engineering, project management, development planning, mega-projects and optimisation. Michael has led various teams for integrity, design input, negotiation of acquisitions and licensing of intellectual property. Michael has degrees in chemical engineering, arts, process design and an MBA in management. In his spare time, he enjoys cooking and running.


References

Baxi, J., Bond, M., and Canning, G. (2018). Capacity Enhancement at PNG LNG from 6.9 MTA to 8.6 MTA. In ‘27th World Gas Conference, Washington D.C., 25–29 June 2018’. (WGC, Washington D.C.).

Han, X. H., Zhang, Y. J., Gao, Z. J., Xu, Y. J., Wang, Q., and Chen, G. M (2012). Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) and Methane (CH4) in the Temperature Range of 110 to 125K. Journal of Chemical Engineering Data 57, 1621–1626.
Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) and Methane (CH4) in the Temperature Range of 110 to 125K.Crossref | GoogleScholarGoogle Scholar |